dataGrid中选择后改变颜色

<%@Import Namespace="System.Data"%>
<script language="C#" runat="server">void Page_Load(object src,EventArgs e){
if(!Page.IsPostBack){
DataTable table=new DataTable();
table.Columns.Add(new DataColumn("first",typeof(string)));
table.Columns.Add(new DataColumn("second",typeof(int)));
table.Columns.Add(new DataColumn("third",typeof(bool)));
DataRow row;
for(int i=0;i<40;i++){
row=table.NewRow();
row[0]="这是第"+(i+1).ToString()+"条数据";
row[1]=i;
row[2]=(i%2==0)?true:false;
table.Rows.Add(row);
}
dlist.DataSource=table;
dlist.DataBind();
}
}void BindScript(object src,DataGridItemEventArgs e){
if(e.Item.ItemType==ListItemType.Item||e.Item.ItemType==ListItemType.AlternatingItem){
e.Item.Attributes.Add("style","cursor:hand");
e.Item.Attributes.Add("onclick",GetPostBackEventReference(e.Item.Cells[0].Controls[0]));
e.Item.Attributes.Add("onmouseover","HandleMouseEvent(\'over\');");
e.Item.Attributes.Add("onmouseout","HandleMouseEvent(\'out\');");
e.Item.Attributes.Add("ondblclick","HandleMouseEvent(\'dblclick\');");
}
}
</script>
<HTML><HEAD>
<TITLE> Webdiyer制造 ：）(http://www.webdiyer.com) </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="Webdiyer">
<SCRIPT LANGUAGE="JavaScript">
<!--
function HandleMouseEvent(evt){
var el=event.srcElement;
if(el.tagName=="TD"&&el.parentElement.style.backgroundColor!="#666666"){
switch(evt){
case "over":
el.parentElement.style.backgroundColor="#000066";
el.parentElement.style.color="#ffffff";
break;
case "out":
el.parentElement.style.backgroundColor="white";
el.parentElement.style.color="#000000";
break;
case "dblclick":
el.parentElement.style.backgroundColor="red";
break;
}
}
}
//-->
</SCRIPT>
</HEAD><BODY>
<form runat="server">
<div style="width:100%;height:200px;overflow:auto">
<asp:DataGrid runat="server" id="dlist" SelectedItemStyle-BackColor="#666666" Width=100% OnItemDataBound="BindScript">
<headerStyle font-bold=true forecolor=red horizontalalign="center" backcolor="#889988"/>
<Columns>
<asp:ButtonColumn runat="server" CommandName="Select" Visible=false/>
</Columns>
</asp:DataGrid>
</div>
</form></BODY></HTML